Electrical currents run through the ignition coil and transmit electricity to the spark plug. The electricity creates sparks within the spark plug, and the sparks ignite the fuel in the engine, enabling the chain saw to run. Testing the ignition coil at home is simple to do and requires minimal tools.
In a generator, you reverse the process: You move a magnet past the armature to create electric current in the coil. A primary coil of perhaps 200 turns of thick wire wrapped around one leg of the U.A secondary coil of perhaps 20,000 turns of very thin wire wrapped around the primary coil. The secondary coil, having 100 times more turns than the primary coil, amplifies this voltage to approximately 20,000 volts, and this voltage feeds to the spark plug.
Electrical currents run through the ignition coil and transmit electricity to the spark plug. The electricity creates sparks within the spark plug, and the sparks ignite the fuel in the engine, enabling the chain saw to run. The magneto creates the electrical charge needed to fire the spark plug, and the spark plug creates the spark inside the combustion chamber to ignite the gasoline.
Not too many years ago, ignition systems used in pro saws were simple points triggered magnetos. A few years ago a fellow came in the shop hopping mad. He was running a pro saw that had an exposed spark plug boot on the top of the saw. Weak ignition systems sometimes make just enough spark to operate the saw when it is cool, but at operating temperature, the resistance goes up and the weak spark fails to fire the plug.
They are necessarily equipped with an ignition system that is responsible for the timely ignition of the air-fuel mixture in the cylinders by means of an electric discharge, which breaks through the space between the electrodes of the spark plugs. Device and principle of operation of the chainsaw ignition system. In practice, in the case of mass production of the engine at the factory, individual adjustment of the ignition of each product is not carried out, but corresponding marks are placed on the rotating parts, which must be combined during installation.
how does a chainsaw ignition module work Related Question:
How does an electronic ignition module work?
An electronic ignition system is a type of ignition system that works electronic circuits, usually by transistors. The transistors are controlled by sensors to generate electric pulses which then generate a high voltage spark that can burn the lean mixture and provide a better economy and lower emission.
How do you check the ignition module on a chainsaw with a multimeter?
Locate the coil on your chainsaw. Connect the negative and positive cords of the multimeter to the negative and the positive terminals of the coil in your chainsaw and measure the resistance. A brief answer is convenient for those who are short of time but it will not give you the necessary details of the matter.
How does a chainsaw magneto work?
The magneto creates the electrical charge needed to fire the spark plug, and the spark plug creates the spark inside the combustion chamber to ignite the gasoline (see How Two-stroke Engines Work for details).
What causes a weak spark on a chainsaw?
A weak spark on a Husqvarna chainsaw can be caused by one of these misfiring components in the ignition system. Properly maintaining and cleaning the saw on a regular basis will prevent most spark issues. Most problems can be isolated easily and fixed with a few simple tools and parts.
What causes ignition module failure?
Electrical Short Either place can be contaminated with road debris or chemicals that cause the ignition module to corrode. When the ignition module corrodes, it shorts out the circuits and causes the automobile to stall or not start.
What is the difference between points and electronic ignition?
In an electronic system, you still have a distributor, but the points have been replaced with a pickup coil, and there’s an electronic ignition control module. These are far less likely to breakdown than conventional systems, and provide very reliable operation.
What is inside an ignition module?
One of the components inside an ignition module is a transistor, which takes over the function of the switch. Effectively, this transistor replaces the switch it still switches the current through the primary winding on and off, just more quickly/more precisely. The advantages are clear to see: No mechanical wear.
How many ohms should a chainsaw coil have?
As well as this, also attach it to the terminal that connects to the chainsaw’s spark plug. A coil’s secondary resistance range (on average) is from 6 thousand to 10 thousand ohms. However, you need to make use of your manual to confirm the right secondary readings of the chainsaw you own.
How many ohms Should a coil read?
You should have a resistance reading of at least 3-4.5 ohms. A bad coil will show a higher reading then 3-4.5. Next, place the red or black lead from the meter to the centre of the coil , and to either one of the terminals positive or negative. You want 9500-10000 Ohms, a little less is ok but no more.
What is the air gap on a Husqvarna chainsaw?
Re: Air gap on Husky 61 0.15 to 0.3 should work fine.
What is Distributorless ignition system?
A distributorless ignition system is a type of ignition system, that is consists of multiple induction coils instead of having a distributor of an electronic ignition system. This is very different from the traditional and electronic ignition systems. The coils rest on top of the spark plugs.
Does a magneto need a battery?
Because it requires no battery or other source of electrical energy, the magneto is a compact and reliable self-contained ignition system, which is why it remains in use in many general aviation applications.
What is the difference between battery ignition system and magneto ignition system?
In battery ignition system a battery and ignition coil is used to generate spark at spark plug but in magneto ignition system necessary energy is generated by its own electric generator. It is mounted on the engine and replaces all component of battery ignition system except spark plug.
Why does my Stihl chainsaw not start?
The carburetor might be clogged. A clogged carburetor is often caused by leaving fuel in the chainsaw for a long period of time. Over time, some of the ingredients in the fuel will evaporate, leaving behind a thicker, stickier substance. This sticky fuel can clog up the carburetor and prevent the engine from starting.
How long should a chainsaw spark plug last?
A poorly functioning engine in a Stihl chainsaw can mean more work for the operator and can even be dangerous. Consequently, Stihl recommends replacing the spark plug after every 100 service hours.